Polishing and buffing machine.



PATBNTBD MAR. 22, 1904. L. E. MILLER 6L C. J. BARRY. POLISHING AND BUIIING MACHINE.

APILIOATION FILED JUNE 20,1903.

2 SHEETS-SHEET 1.

N0 MODEL.

PATRNTRD MAR. 2z, 1904.

L. R. MILLER & o. J.. BARRY.

POLISHING AND RURFING MACHINE.

.APPLICATION :FILEDv JUNE 20,1903.

2 SHEETS-SHEET 2.

Phnmuma. w Humm D :uns m,

N0 MODEL.

IINTTEE STATES Patented March 22, 1904.

PATENT Ormea.

LAWRENCE E. MILLER ANI) CORNELIUS J. BARRY, OF CHICAGO, ILLINOIS.

- POLISHING AND BUFFING MACHINE.

SPECIFICATIGN forming part of Letters Patent No. 755,031, dated March 22, 1904.

Application iiled .Tune 20, 1903. Serial No. 162,319. (No model.)

To all whom t may concern,.-

Be it known that we, LAWRENCE E. MILLER and CORNELIUS J. BARRY, citizens of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements and bars and the like.

To this and certain minor ends our invention consists in certain novel features of construction, which are clearly illustrated in the accompanying drawings and described in the specification.

In the aforesaid drawings, Figure 1 is a side elevation of our improved device. Fig. 2 is a plan thereof. Fig. 3 is a section in the line 3 3 of Fig. 2 looking in the direction of the arrow. Fig. 4 is a section in the line A I of Eig. 2 looking in the direction of the arrow. Fig. 5 is a View of the parts shown'in the upper portion of Fig. 1I, showing the device in use; and Fig. 6 is a section in the line 6'6 of Fig. l.

Referring now to the drawings, Ais the base of our machine. rIhis base is made in any suitable form, preferably of cast metal, and contains a longitudinal slot A. Upon the base A rest two standards B and C, which have 'downwardly-projecting portions Z) c, respectively, these downwardly-projecting portions running in thc slot A of the base A. The construction of the bases of these two standards is substantially similar and will be fully understood by reference to Eig. 4, which shows the base of the standard B. These standards,it will be noted, have laterally-projecting ribs c' immediately above the downwardly-projecting portions I) o, which ribs run between the base A and guide-plates A2 A2, which are bolted to the base A and held at the proper vertical distance above said bases by blocks a.

In the upper end of the standard C is journaled a shaft c2, which bears two pulleys D and C. To the left ofthe base A is a standard E, bolted or otherwise secured to the floor,

in the upper end of which standard is journaled a shaft e, which bears three pulleys EQ E2, and F. Power is applied to the shaft e through the pulley E, and the shaft c2 is driven lfrom the shaft c by a belt e', which runs over the pulley E2 and the pulley C', the belt being twisted, as is shown in the drawings, so that the two pulleys run in opposite directions.

To the lower part of the standard B is pivoted a link B', rotatable in a vertical plane in the length of the machine, and to the upper end of this link is pivoted an arm B2, rotatable in planes at right angles to the plane of the link B. This arm is normally held toward the front of the machine by a spring b2, which position is shown in Fig. 4. To the upper end of the arm b2 is secured a shaft, upon which are two pulleys Gr H, preferably mounted on ball-bearings, as shown in Fig. 6. The standard B, it will be seen, is carried up slightly above the end of the arm B2 and is provided near its end with a perforation Z22, which is normally concentric with the pulley H. A belt Gr', preferably coated on its inside with a suitable polishing or grinding material, is run from the pulley D over and around the pulley Gr, anda similar belt I-I/ is run from the pulley F about the pulley H.

The general operation of this device can now be well understood and will be explained. Certain of the mechanical features of the machine are hereinafter described; but these features pertain to the adjustment of the device rather than to its general operation. As heretofore stated, the primary object of this device is t0 polish rods and tubing. When such an article is to be polished, one end thereof is pushed through the perforation b2 in the upper end of the standard B, and this perforation serves as the guide andy support for the tubing. The end of the tube then comes in contact with the pulley H and pushes it away from the standard, the tube following after it and passing'inside the loop of the belt H. As the arm B2 is pushed still farther backward the tube enters the loop of the belt G', so that all sides of the tube are brought into contact with one or the other of the buffing-surfaces. The tube is pushed through the machine, the

arm swinging toward the position shown in Fig. 5, entirely out of the way of the tube. Vhen one length of tube has passed through the machine, a second length can be pushed on after it without withdrawing the first, and this operation can be kept up indefinitely, one tube being putin after another. Then it is desired to stop the operation of the machine, the last tube is drawn back through the perforation in the standard B, the arm B2 following after it, and the pulleys G H, under the iniiuence of the spring b2, are returned to their ordinary positions within the loops of the belts. The pulley H is made slightly rounded or beveled at the end to make its return to position within the belt-loops easy and certain.

Two arms L* L* are secured to the upper end of the standard B, and these arms bear pulleys 7i), which guide the belts G and H.

'I wo ratchet bars a a2 are secured to the guide-plate A3, and pawls 7) c are secured to the standards B and C, respectively, the ratchets being arranged in each case to prevent the standards from moving toward the standard E. These ratchets are particularly useful in setting up and adjusting the machine. The downwardly projecting portions and c on the standards B and C, respectively, are provided, as will be seen in the drawings, with racks, and pinions B3 C3,jou1'naled in the frame, engage therewith. These pinions are mounted upon shafts which terminate in squared ends B4 C, suitable for the attachment of a crank or other similar device.

The operation of setting up and adjusting a machine of this type will now be described. The bolt which pivot-s the link B tothe standard B is first loosened to permit the link to rotate freely in a vertical plane running lengthwise of the machine. The pinion C3 is then rotated so as to move the standard C to the right until the buiiing-belts G and H are at the proper tension. Inasmuch as the pulleys G and H are free to move longitudinally of the machine, the tension on these two belts will be equal and opposite. Then the proper tension upon the belts is attained, it will be maintained, because the pawl c will hold the standard C in the proper position and not permit it to move back toward the left. The standard B is then moved to the right or left, as the case may be, by rotating the pinion B3 until the perforation 3 is in line with the pulleys G and H. The bolt running through the link B is then tightened up, so that the arm B2 stays in the same vertical plane.

inasmuch as the position of the standard C is only determined by the lengths of the buffing-belts, some means has to be provided for regulating the length of the belt c. This is done by an idler C5, which is shown in the drawings.

We realize that considerable variations are possible in the details of this construction without departing from the spirit of the invention, and we therefore do not intend to limit ourselves to the specific form herein shown and described, except as pointed out in the claims.

I/Ve claim as new and desire to secure by Letters Patent* 1. In a device ofthe class described, the combination with two driven pulleys, of two idlerpulleys mounted in line with each other upon a longitudinally-movable shaft, and a bufferbelt running from cach of said driven pulleys over said idler-pulleys.

2. In a device of the class described, the combination with two driven pulleys, of two idlerpulleys mounted upon a longitudinally-movable shaft, a guide in line with said pulleys, and buffer-belts running from each of said driven pulleys over said idler-pulleys.

3. In a polishing-machine, the combination with a suitable driving-pulley and a polishingbelt driven by said pulley, of an idler-pulley over which said belt runs, and suitable means for supporting said idler-1j ulley and permitting it to move longitudinally to permit the article to be polished to take its place in contact with the belt.

4i. In a device of the class described, the combination with two driven pulleys, of two idlerpulleys mounted upon a yielding longitudinallymovable shaft, buiiing belts running from said driven pulleys over said idler-pulleys, and a guide in line with said idler-pulleys, said pulleys being normally springpressed toward ,said guide.

5. In adevice of the class described, the cornbination with two driven pulleys, oi two idlerpulleys mounted upon a longitudinally-movable shaft, bulfing-belts running from said driven pulleys over said idler-pulleys, and suitable guide pulleys for maintaining the proper position of said buiiing-belts.

6. In a device of the class described, the combination with two driven pulleys, of a pivoted spring-pressed arm, rotatable in a plane at right angles to the planes of said driven pulleys, two idler-pulleys journaled upon the end of said arm and normally parallel to said driven pulleys, and suitable bufling-belts running over said idler-pulleys.

7. In a device of the class described, the combination with two driven pulleys, of a pivoted spring-pressed arm, rotatable .in a plane at right angles to the planes of said driven pulleys, two idler-pulleys journaled upon the end of said arm and normally parallel to said driven pulleys, suitable butiing-belts running over said idler-pulleys, the idler-pulley farthest removed from said arm being tapered to permit it to return to position after being removed from the belts.

8.` In a device of the class described, the combination with a suitable base, of two standards bearing shafts, one of said shafts being suit- IOO IIO

IIS

ably driven, means of connection between said first shaft and said second shaft, whereby said second shaft is driven by said first shaft, pulleys upon each of said shafts and driven therewith, a third standard intermediate said first two standards, a longitudinally-movable shaft journaled thereon, two idler-pulleys upon said last-named shaft, and buffer-belts passing about said idler-pulleys from said driven pulleys.

9. In a device of the class described, the combination with a suitable base, of two standards, shafts mounted therein, means for synchronizing the rotation of said shafts and for driving one of them, and pulleys upon each of said shafts and driven thereby, of a third standard having a su itable guide, a longitudinally-movable shaft in line with said guide, two idlerpulleys upon said longitudinally movable shaft, and bufferbelts running from said driven pulleys over said idler-pulleys.

10. In a device of the class described, the combination with a suitable base, of two standards, shafts therein, means for synchronizing the movements of said shafts, and for driving one of them and pulleys upon each of said shafts and driven thereby, of a third standard having a suitable guide, an arm pivoted thereto to swing in a vertical plane parallel to said shafts, a shaft secured to the end of said arm, two idler-pulleys jou rnaled upon said shaft and belts running from said driven pulleys and about said idler-pulleys.

11. In a device of the class described, the Combination with a suitable base, a fixed standard, a movable standard mounted on said base and movable longitudinally of the same, and shafts bearing pulleys and journaled in each of said standards, of a movable standard mounted between said first two standards, and bearing a longitudinally-movable shaft, idlerpulleys upon each of said shafts, and belts running from said first-named pulleys to the idlerpulleys.

12. In a device of the class described, the combination with a suitable base, a fixed standard, a movable standard mounted on said base and movable longitudinally of the same, and shafts bearing pulleys and journaled in each of said standards, of a second movable standard bearing a longitudinally-movable shaft, idler-pulleys upon the last-named shaft, belts running from said first-named pulleys to the idler-pulleys, and means for fixing the position of said first movable standard.

13. In a device of the class described, the combination with a suitable base, a fixed standard, a movable standard mounted on said base and movable longitudinally of the same, and shafts bearing pulleys and journaled in each of said standards, of a second movable standard bearing a longitudinally-movable shaft, idler-pulleys upon said longitudinally-movable shaft, belts running from said first-named pulleys to the idler-pulleys, a ratchet-bar on said base, and a pawl on said first movable standard, adapted to fix the position of the same.

14. In a device of the class described, the combination with a suitable base, a fixed standard, a movable standard mounted on said base and movable longitudinally of the same, and shafts bearing pulleys and journaled in each of said standards, of a second movable standard bearing a longitudinally-movable shaft, idler-pulleys upon said longitudinally-movable shaft, belts running from said first-named pulleys to the idler-pulleys, and means for moving each of said standards.

15. In a device of the class described, the combination with a suitable base, afixed standard, a movable standard mounted on said base and movable longitudinally of the same, and shafts bearing pulleys and journaled in each of said standards, of a second movable standard bearing a longitudinally-movable shaft, idler-pulleys upon each of said shafts, belts running from said first-named pulleys to the idler-pulleys, rack-bars on said standards, and pinions mounted on said base adapted to move said standards longitudinally of said base.

16. In a device of the class described, the combination with a suitable base and two driven pulleys journaled thereon, the distance between said pulleys being variable, of a suitable standard mounted upon said base and between said pulleys, a link pivoted to said standard and rotatable in the plane of said pulleys, an arm pivoted to said link and rotatable in planes at right angles to the plane of said pulleys, a shaft secured to the end of said arm, a spring for holding said arm in a position where said shaft is parallel to the axis of said pulleys, idler-pulleys upon said shaft, and belts running from said driven pulleys over said idler-pulleys.

17. In a device of the class described, the combination with a suitable base and two driven pulleys, the distance between said pulleys being variable, of a suitable standard mounted upon said base and'between said pulleys, a link pivoted to said standard and rotatable in the plane of said pulleys, an arm pivoted to said link and rotatable in planes at right angles to the( plane of said pulleys, a shaft secured to the end of said arm, a spring for holding said arm in a position where said shaft is parallel to the axis of said planes, idler-pulleys upon said shaft, belts running from said first-named pulleys over said idlerpulleys, and a guide in line with said idlerpulleys.

18. In a polishing-machine, the combination with a polishing-belt and means for driving the same, of an idler-pulley over which said IOO lio

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belt runs, a guide substantially in line with l and at 'one end of the idler-pulley, and supthe county of Cool: and State of Illinois, this porting' devices for the pulley, movable lonlth day of June, A. D. 1903.

gitudinally therewith to permit the article to LAVRENCE E. MILLER. be polished to be thrust through the guide and CORNELIUS J. BARRY. 5 take the place of the idler-pulley. Witnesses:

In Witness whereof Wehave signed the above CHAs. C. SHERVEY,

application for Letters Patent at Chicago, in l S. BLISS. 

